PR缩写的意思

DS UMTS EAF AJG DVVI ESC IM DL DTP EWT FED ppm S3 IS-IS GIMM ASC DCN AP EEROM CPS Bps GPS CSE FCN AFC RIP DPON CC GDPS QDOS DVC DTD SSG EF CICS mcu CTDM NDS SOC DFSK NCBA MADP RAID EFCI IOB STB APADAS ABDL ASI SFB DFOS CRC CNCC CAI APARS ETE DCT CPM SSM EELS